# mtm-ddwipe Wipe a block device. Warning: destructive and irreversible. Target must be a real block device, not mounted, and not in use. Usage: mtm-ddwipe DEVICE mtm-ddwipe -h | --help Options: -h, --help Show help. Notes: - Interactive by default. - Confirm exactly before wiping. - Optional tools: blkdiscard, ddrescue, dd_rescue, nvme, hdparm.